Spanish 21
Spanish 21 is blackjack dealt from Spanish decks: every deck keeps its jacks, queens and kings but loses the four cards marked 10, leaving 12 ten-valued cards in each deck. Fewer tens mean fewer player blackjacks, weaker doubles on 10 and 11, and more dealer hands that survive their draw, and every one of those favors the house.
To make up for the missing cards, the game carries a long list of player-friendly rules and bonus payouts. This page lists them, gives the house edge for the common versions, and prices each rule one at a time. The full-deck game it departs from is described step by step on the how-to-play page.
The Rules of Spanish 21
These are the rules priced on this page, dealt from six Spanish decks with the dealer checking for blackjack before anyone acts. The 21 bonuses are paid only on a hand that has not been doubled; a doubled 21 still wins, at even money on the doubled stake.
Spanish 21 House Edge by Version
All three use the full list of rules above. The soft 17 rule moves the edge far more than the number of decks does, so it is the line to read first on a Spanish 21 table.
What Each Spanish 21 Rule Is Worth
Each row starts from the six-deck game in which the dealer hits soft 17, removes one rule and keeps every other. The higher the edge in a row, the more the missing rule was worth to the player.
What the Missing Tens Cost
The bonuses are worth more than any other single rule, and the split-ace rules come close behind: a split ace that could take only one card would lose much of its value on a deck this short of tens. The rescue and late surrender are worth less, because both only soften hands that have already gone wrong.
The key point: Spanish 21 needs every one of its liberal rules: take any single one away and the house edge rises, by the most for the bonuses and the least for surrender.
The other side of the ledger is the deck itself. Dealt with every rule in the list but from full decks, tens included, the same game would leave the player ahead by 1.17% over the long run. Removing the tens is what turns that player advantage into the house edges above, and the liberal rules exist to pay most of it back.
Strategy on a Spanish Deck
On a Spanish deck the ordinary chart goes wrong in both directions, and the game needs a chart of its own. With fewer tens in the deck, doubling and splitting lose some of their force, since the card most hoped for is scarcer, and several hard doubles that are automatic on an ordinary table become closer calls.
Against that, the 21 bonuses and the right to double on any number of cards reward hands that keep drawing, so a hand of three or four small cards can be worth more than its total suggests. Late surrender and the rescue add an exit from hands that turn bad, which makes some aggressive doubles affordable. Why each cell of the full-deck chart is right is explained on the blackjack strategy page.
Insurance on a Spanish Deck
Insurance pays 2:1 when the dealer, showing an ace, turns out to have a ten-valued card underneath. On six Spanish decks that happens 25.09% of the time, against 30.87% on six ordinary decks, because the deck holds fewer tens. The bet's house edge, the share of every insurance stake the house keeps over the long run, is 24.74% on the Spanish shoe against 7.40% on the ordinary one.
The rule: On a Spanish deck insurance costs far more than on an ordinary shoe, so decline it every time it is offered.
How insurance is priced on ordinary tables, rule set by rule set, is covered in the blackjack odds guide.
Where to Play Spanish 21
Spanish 21 is rarely offered as a free demo, and none of the tables in our library deals from a Spanish deck. The free blackjack games page lists every free table in our library; those deal from full decks, so none of the edges here describe them, and each table's own rules screen says which rules it uses.
How Spanish 21 compares with the other variants, rule for rule and edge for edge, is in the variant table on the blackjack hub.
Spanish 21 FAQ
Yes. Only the cards marked 10 are taken out. Jacks, queens and kings still count ten and still make a blackjack with an ace, so blackjacks simply come less often than on a full deck.
Only on the right table. When soft 17 is a stand for the dealer and every rule is in place, its edge with perfect play is 0.37%, against 0.40% for the ordinary six-deck game with a 3:2 blackjack. With the dealer hitting soft 17 it is clearly the more expensive game.
Yes. Making the dealer hit soft 17 rather than stand raises the Spanish 21 edge from 0.37% to 0.78%, a larger rise than the 0.21 points the same rule adds on an ordinary six-deck table.
Yes. A player 21 wins whatever the dealer holds, and a five-card 21 that was never doubled is paid at its bonus rate of 3:2. The dealer's total only matters to player hands below 21.